<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="封面标题" prop="coverId">
        <el-select v-model="queryParams.coverId" filterable clearable placeholder="请选择封面标题">
          <el-option
            v-for="item in coverList"
            :key="item.id"
            :label="item.title"
            :value="item.id"
          ></el-option>
        </el-select>
      </el-form-item>
      <el-form-item label="文章标题" prop="title">
        <el-input
          v-model="queryParams.title"
          placeholder="请输入文章标题"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="标签" prop="labelids">
        <el-select v-model="queryParams.labelids" multiple filterable clearable placeholder="请选择标签">
          <el-option
            v-for="item in labelList"
            :key="item.id"
            :label="item.label"
            :value="item.id"
          ></el-option>
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['demo:article:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['demo:article:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['demo:article:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['demo:article:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="articleList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="封面标题" align="center" prop="coverTitle" />
      <el-table-column label="文章标题" align="center" prop="title" />
      <el-table-column label="标签" align="center" prop="labelIds">
        <template slot-scope="scope">
          <el-tag v-for="item in scope.row.labels" :key="item.id" size="small" style="margin: 0 2px;">{{ item.label }}</el-tag>
        </template>
      </el-table-column>
      <el-table-column label="喜欢数" align="center" prop="likes" />
      <el-table-column label="评论数" align="center" prop="comments" />
      <el-table-column label="收藏数" align="center" prop="collects" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['demo:article:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['demo:article:remove']"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>
    
    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改文章管理抽屉 -->
    <el-drawer :title="title" :visible.sync="open" direction="ltr" size="50%" :before-close="cancel">
      <div class="drawer-content">
        <el-form ref="form" :model="form" :rules="rules" label-width="100px">
          <el-divider content-position="left">基本信息</el-divider>
          <el-form-item label="封面标题" prop="coverId">
            <el-select v-model="form.coverId" filterable clearable placeholder="请选择封面标题" style="width: 100%;">
              <el-option
                v-for="item in coverList"
                :key="item.id"
                :label="item.title"
                :value="item.id"
              ></el-option>
            </el-select>
          </el-form-item>
          <el-form-item label="文章标题" prop="title">
            <el-input v-model="form.title" placeholder="请输入文章标题" />
          </el-form-item>
          <el-form-item label="标签" prop="labelIds">
            <el-select v-model="form.labelIds" multiple filterable clearable placeholder="请选择标签" style="width: 100%;">
              <el-option
                v-for="item in labelList"
                :key="item.id"
                :label="item.label"
                :value="item.id"
              ></el-option>
            </el-select>
          </el-form-item>
          
          <el-divider content-position="left">内容设置</el-divider>
          <el-form-item label="文章内容" prop="content">
            <editor v-model="form.content" :min-height="300"/>
          </el-form-item>
          
          <el-divider content-position="left">媒体资源</el-divider>
          <el-form-item label="文章图片" prop="image">
            <image-upload v-model="form.image"/>
          </el-form-item>
        </el-form>
        <div class="drawer-footer">
          <el-button type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </div>
    </el-drawer>
  </div>
</template>

<script>
import { listArticle, getArticle, delArticle, addArticle, updateArticle } from "@/api/demo/article";
import { listCover } from "@/api/demo/cover";
import { listLabel } from "@/api/demo/label";

export default {
  name: "Article",
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 文章管理表格数据
      articleList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        coverId: null,
        title: null,
        content: null,
        labelIds: null,
        image: null,
        likes: null,
        comments: null,
        collects: null,
      },
      // 表单参数
      form: {
        likes: 0,
        comments: 0,
        collects: 0
      },
      coverList:[],
      labelList:[],
      // 表单校验
      rules: {
        coverId: [
          { required: true, message: "请选择封面标题", trigger: "blur" }
        ],
        title: [
          { required: true, message: "文章标题不能为空", trigger: "blur" }
        ]
      }
    };
  },
  created() {
    this.getList();
    this.getCoverList();
    this.getLabelList();
  },
  methods: {
    getLabelList() {
      listLabel({pageNum:1,pageSize:1000}).then(response => {
        this.labelList = response.rows;
      });
    },
    getCoverList() {
      listCover({pageNum:1,pageSize:1000}).then(response => {
        this.coverList = response.rows;
      });
    },
    /** 查询文章管理列表 */
    getList() {
      this.loading = true;
      if(this.queryParams.labelids){
        this.queryParams.labelIds = this.queryParams.labelids.join(',');
      }
      listArticle(this.queryParams).then(response => {
        this.articleList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        id: null,
        coverId: null,
        title: null,
        content: null,
        labelIds: [],
        image: null,
        likes: 0,
        comments: 0,
        collects: 0,
        createBy: null,
        createTime: null,
        updateBy: null,
        updateTime: null
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length!==1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加文章管理";
      this.getCoverList();
      this.getLabelList();
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.getCoverList();
      this.getLabelList();
      this.reset();
      const id = row.id || this.ids
      getArticle(id).then(response => {
        this.form = response.data;
        if(this.form.labelIds){
          this.form.labelIds = this.form.labelIds.split(',');
        }
        console.log(this.form)
        this.open = true;
        this.title = "修改文章管理";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          // 确保统计数字不为空
          this.form.likes = this.form.likes || 0;
          this.form.comments = this.form.comments || 0;
          this.form.collects = this.form.collects || 0;
          
          this.form.labelIds = this.form.labelIds ? this.form.labelIds.join(',') : '';
          if (this.form.id != null) {
            updateArticle(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addArticle(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids;
      this.$modal.confirm('是否确认删除文章管理编号为"' + ids + '"的数据项？').then(function() {
        return delArticle(ids);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {});
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('demo/article/export', {
        ...this.queryParams
      }, `article_${new Date().getTime()}.xlsx`)
    }
  }
};
</script>

<style scoped>
.drawer-content {
  padding: 20px;
  height: 100%;
  box-sizing: border-box;
  overflow-y: auto;
}

.drawer-footer {
  position: absolute;
  bottom: 20px;
  right: 20px;
}

.el-divider {
  margin: 30px 0 20px 0;
}

.el-form-item {
  margin-bottom: 20px;
}

/* 为必填项添加红色星号 */
.el-form-item.is-required .el-form-item__label:before {
  content: '*';
  color: #F56C6C;
  margin-right: 4px;
}
</style>